I have two problems

Question

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655

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1. What is 3x4x5?

2. A student randomly chose a number, multiplied it by 2, then subtracted 138 from the result and got 102. What was the number he chose?

Guest Jan 9, 2017

IsabelleJ761 · Answer 1 · 2017-01-09T05:27:15

1. 60

2. Since the student chose a number let (x) be the number he chose:

2 * x - 138=102

2x=240

X=120 is the answer

Obscure · Answer 2 · 2017-01-09T05:28:33

1.

A: 3 x 4 x 5 = 3 x 4(12) x 5

So 12 x 5 = 60. (3 x 4 x 5 = 60)

2.

A: First, add 138 and 102 to get 240. Then divide 240 by 2 to get your answer! (138 + 102 = 240 / 2 = 120!)

Guest · Answer 3 · 2017-01-09T05:29:14

Thanks Isabelle!

Guest · Answer 4 · 2017-01-09T05:33:56

Actually no. She has always helped me and was the first to reply. But you're answer was good as well :)